What's the difference between viral and bacterial sinus infections?

Sinus infections: Viral sinus infections generally are gone by a week.They can produce yellow or green mucus during their time in your system.If you continue to experience thick yellow or green mucus especially with fever it is more likely to be bacterial. Bacterial infections can be treated with antibiotics. Viral infections do not respond to antibiotics. Smokers are more likely to have problems with both.